Glass beads in lunar soil reveal ancient asteroid bombardments on the Moon and Earth

Sat, 15 Oct 2022 19:23:40 +1100

Andrew Pam <xanni [at] glasswings.com.au>

Andrew Pam
<https://theconversation.com/glass-beads-in-lunar-soil-reveal-ancient-asteroid-bombardments-on-the-moon-and-earth-191342>

"In 2020, China’s Chang'e 5 mission sampled more than a kilogram of Moon rock
and soil and brought it back to Earth. The samples contain countless tiny beads
of glass, created when asteroids hit the Moon and splashed out droplets of
molten rock around the impact site.

We have analysed these glass beads and the impact craters near where they were
found in great detail. Our results, published in Science Advances, reveal new
details about the history of asteroids hitting the Moon over the past 2 billion
years.

In particular, we found traces of several waves of impacts occurring at the
same times as impacts on Earth – including the Chicxulub impact 66 million
years ago that led to the extinction of the dinosaurs."

Share and enjoy,
               *** Xanni ***
--
mailto:xanni@xanadu.net               Andrew Pam
http://xanadu.com.au/                 Chief Scientist, Xanadu
https://glasswings.com.au/            Partner, Glass Wings
https://sericyb.com.au/               Manager, Serious Cybernetics

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